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26384 = 241797

26384 has 20 divisors (see below), whose sum is σ = 54684. Its totient is φ = 12288.

The previous prime is 26371. The next prime is 26387. The reversal of 26384 is 48362.

26384 = T47 + T48 + ... + T63.

It is a happy number.

26384 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in 2 ways, for example, as 16384 + 10000 = 128^2 + 100^2 .

It is a super-2 number, since 2×263842 = 1392230912, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224 + ... + 320.

226384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27342).

26384 is an abundant number, since it is smaller than the sum of its proper divisors (28300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26384 is a wasteful number, since it uses less digits than its factorization.

26384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 116 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 26384 is about 162.4315240340. The cubic root of 26384 is about 29.7700944675.

The spelling of 26384 in words is "twenty-six thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 17 34 68 97 136 194 272 388 776 1552 1649 3298 6596 13192 26384